On Wed, Apr 10, 2024 at 10:37:38AM +0200, Martin Wilck wrote: > On Tue, 2024-04-09 at 18:56 -0400, Benjamin Marzinski wrote: > > With this change, if the SCHED_RT_PRIO compiler flag has been > > removed. > > Instead multipathd will call getrlimit(RLIMIT_RTPRIO, ...) and look > > at > > the hard limit. It it's 0, multipath will do nothing. Otherwise it > > will > > change its scheduling policy to SCHED_RR and its priority to the hard > > limit. > > > > This allows users to change the priority of that multipathd runs with > > by > > adding > > > > LimitRTPRIO=<prio> > > > > to the [Service] section of the multipathd.service unit file. Setting > > LimitRTPRIO=0 will make multipathd run as a normal process, while > > setting LimitRTPRIO=infinity will make it use the maximum SCHED_RR > > prio, > > which is 99. > > > > To keep the existing behavior, multipathd.service now sets > > LimitRTPRIO=infinity > > > > Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx> > > Reviewed-by: Martin Wilck <mwilck@xxxxxxxx> > > I will wait a while for feedback on > https://github.com/opensvc/multipath-tools/issues/82 > before pushing it to the queue branch. > > When it's pushed, I'll squash it with 1c4301a ("multipathd: make > multipathd scheduling configurable"), if you don't mind. That's fine. > > Thanks, > Martin
